Well they're doing quite a lot in data-journalism. The Upshot (NYT) and 538 have git organizations. Others are trying the "timeless" content you're describing – I'd say Vox's "cards" come close (but are horribly boring tbh)
Problem is – besides politics not always being easy to capture numerically – that the economics of such a model probably wouldn't work. It'd probably increase costs by factor of at least 5, and I strongly doubt that the market could support it.
It's a tragedy-of-the-commons situation. I currently don't pay for any subscriptions, even though I've avoided the cynicism and the conspiracy theories frequently invoked against journalists. I think they're excellent – so much so in fact that can't imagine getting tied to any single publication.
But, if nobody buys them anymore, we'll get to see what it's like without newspapers. I fear many people don't realize how much of what's going on originates with a handful of organizations. Unfortunately, just as power isn't created in the plug, no news are created on twitter (well, nowadays some are, but you get my point).